68430015 has 48 divisors (see below), whose sum is σ = 130279968. Its totient is φ = 34338816.

The previous prime is 68429987. The next prime is 68430017. The reversal of 68430015 is 51003486.

It is not a de Polignac number, because 68430015 - 2¹⁰ = 68428991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68430017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18999 + ... + 22311.

It is an arithmetic number, because the mean of its divisors is an integer number (2714166).

Almost surely, 2^68430015 is an apocalyptic number.

68430015 is a deficient number, since it is larger than the sum of its proper divisors (61849953).

68430015 is a wasteful number, since it uses less digits than its factorization.

68430015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 68430015 is about 8272.2436496999. The cubic root of 68430015 is about 409.0240818113.

The spelling of 68430015 in words is "sixty-eight million, four hundred thirty thousand, fifteen".